Make HID device class driver reselect the correct endpoint after the user callbacks...

[pub/USBasp.git] / Demos / Host / LowLevel / PrinterHost / Lib / PrinterCommands.c

diff --git a/Demos/Host/LowLevel/PrinterHost/Lib/PrinterCommands.c b/Demos/Host/LowLevel/PrinterHost/Lib/PrinterCommands.c
index 4e2a0d9..c75b7f9 100644 (file)
--- a/Demos/Host/LowLevel/PrinterHost/Lib/PrinterCommands.c
+++ b/Demos/Host/LowLevel/PrinterHost/Lib/PrinterCommands.c
@@ -28,27 +28,38 @@
   this software.\r
 */\r
 \r
   this software.\r
 */\r
 \r

+/** \file\r
+ *\r
+ *  Printer Device commands, to send/receive data to and from an attached USB\r
+ *  printer, and to send and receive Printer Class control requests.\r
+ */\r
+\r

 #include "PrinterCommands.h"\r
 \r
 /** Sends the given data directly to the printer via the data endpoints, for the sending of print commands in printer\r
  *  languages accepted by the attached printer (e.g. PCL).\r
  *\r
 #include "PrinterCommands.h"\r
 \r
 /** Sends the given data directly to the printer via the data endpoints, for the sending of print commands in printer\r
  *  languages accepted by the attached printer (e.g. PCL).\r
  *\r

- *  \param[in] PrinterCommands  Pointer to a structure containing the commands and length of the data to send\r
+ *  \param[in] PrinterCommands  Pointer to the data to send to the attached printer\r
+ *  \param[in] CommandSize  Size of the data to send to the attached printer\r

  *\r
  *  \return A value from the Pipe_Stream_RW_ErrorCodes_t enum\r
  */\r
  *\r
  *  \return A value from the Pipe_Stream_RW_ErrorCodes_t enum\r
  */\r

-uint8_t Printer_SendData(Printer_Data_t* PrinterCommands)\r
+uint8_t Printer_SendData(void* PrinterCommands, uint16_t CommandSize)\r

 {\r
        uint8_t ErrorCode;\r
 \r
        Pipe_SelectPipe(PRINTER_DATA_OUT_PIPE);\r
        Pipe_Unfreeze();\r
        \r
 {\r
        uint8_t ErrorCode;\r
 \r
        Pipe_SelectPipe(PRINTER_DATA_OUT_PIPE);\r
        Pipe_Unfreeze();\r
        \r

-       if ((ErrorCode = Pipe_Write_Stream_LE(PrinterCommands->Data, PrinterCommands->Length)) != PIPE_RWSTREAM_NoError)\r
+       if ((ErrorCode = Pipe_Write_Stream_LE(PrinterCommands, CommandSize)) != PIPE_RWSTREAM_NoError)\r

          return ErrorCode;\r
 \r
        Pipe_ClearOUT();\r
          return ErrorCode;\r
 \r
        Pipe_ClearOUT();\r

-       while (!(Pipe_IsOUTReady()));\r
+       while (!(Pipe_IsOUTReady()))\r
+       {\r
+               if (USB_HostState == HOST_STATE_Unattached)\r
+                 return PIPE_RWSTREAM_DeviceDisconnected;\r
+       }\r

        \r
        Pipe_Freeze();\r
 \r
        \r
        Pipe_Freeze();\r
 \r


@@ -66,7 +77,7 @@ uint8_t Printer_SendData(Printer_Data_t* PrinterCommands)
 uint8_t Printer_GetDeviceID(char* DeviceIDString, uint16_t BufferSize)\r
 {\r
        uint8_t  ErrorCode = HOST_SENDCONTROL_Successful;\r
 uint8_t Printer_GetDeviceID(char* DeviceIDString, uint16_t BufferSize)\r
 {\r
        uint8_t  ErrorCode = HOST_SENDCONTROL_Successful;\r

-       uint16_t DeviceIDStringLength;\r
+       uint16_t DeviceIDStringLength = 0;\r

 \r
        USB_ControlRequest = (USB_Request_Header_t)\r
                {\r
 \r
        USB_ControlRequest = (USB_Request_Header_t)\r
                {\r


@@ -76,9 +87,17 @@ uint8_t Printer_GetDeviceID(char* DeviceIDString, uint16_t BufferSize)
                        wIndex:        0,\r
                        wLength:       sizeof(DeviceIDStringLength),\r
                };\r
                        wIndex:        0,\r
                        wLength:       sizeof(DeviceIDStringLength),\r
                };\r

+               \r
+       Pipe_SelectPipe(PIPE_CONTROLPIPE);\r

 \r
        if ((ErrorCode = USB_Host_SendControlRequest(&DeviceIDStringLength)) != HOST_SENDCONTROL_Successful)\r
          return ErrorCode;\r
 \r
        if ((ErrorCode = USB_Host_SendControlRequest(&DeviceIDStringLength)) != HOST_SENDCONTROL_Successful)\r
          return ErrorCode;\r

+         \r
+       if (!(DeviceIDStringLength))\r
+       {\r
+               DeviceIDString[0] = 0x00;\r
+               return HOST_SENDCONTROL_Successful;\r
+       }\r

        \r
        DeviceIDStringLength = SwapEndian_16(DeviceIDStringLength);\r
 \r
        \r
        DeviceIDStringLength = SwapEndian_16(DeviceIDStringLength);\r
 \r


@@ -116,6 +135,8 @@ uint8_t Printer_GetPortStatus(uint8_t* PortStatus)
                        wLength:       sizeof(uint8_t),\r
                };\r
 \r
                        wLength:       sizeof(uint8_t),\r
                };\r
 \r

+       Pipe_SelectPipe(PIPE_CONTROLPIPE);\r
+\r

        return USB_Host_SendControlRequest(PortStatus);\r
 }\r
 \r
        return USB_Host_SendControlRequest(PortStatus);\r
 }\r
 \r


@@ -135,6 +156,8 @@ uint8_t Printer_SoftReset(void)
                        wLength:       0,\r
                };\r
 \r
                        wLength:       0,\r
                };\r
 \r

+       Pipe_SelectPipe(PIPE_CONTROLPIPE);\r
+\r

        return USB_Host_SendControlRequest(NULL);\r
 }\r
 \r
        return USB_Host_SendControlRequest(NULL);\r
 }\r
 \r